EP3580500B1 - Damper door, and corresponding heating, ventilation and/or air conditioning installation - Google Patents

Damper door, and corresponding heating, ventilation and/or air conditioning installation Download PDF

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Publication number
EP3580500B1
EP3580500B1 EP18710509.3A EP18710509A EP3580500B1 EP 3580500 B1 EP3580500 B1 EP 3580500B1 EP 18710509 A EP18710509 A EP 18710509A EP 3580500 B1 EP3580500 B1 EP 3580500B1
Authority
EP
European Patent Office
Prior art keywords
flap
shut
shutter
rotation shaft
face
Prior art date
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Active
Application number
EP18710509.3A
Other languages
German (de)
French (fr)
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EP3580500A1 (en
Inventor
Philippe Pierres
Nestor VARELA
Pauline CAVAGNA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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Publication of EP3580500A1 publication Critical patent/EP3580500A1/en
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Publication of EP3580500B1 publication Critical patent/EP3580500B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00664—Construction or arrangement of damper doors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00664—Construction or arrangement of damper doors
    • B60H1/00671—Damper doors moved by rotation; Grilles
    • B60H1/00678—Damper doors moved by rotation; Grilles the axis of rotation being in the door plane, e.g. butterfly doors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre

Definitions

  • the present invention relates to the field of heating, ventilation and / or air conditioning installations. More particularly, the invention relates to the field of air flow shutters intended to equip such installations.
  • a heating, ventilation and / or air conditioning system to regulate the aerothermal parameters of the air contained in the passenger compartment of the vehicle by distributing air in the interior of the vehicle.
  • HVAC Heating Ventilation and Air Conditioning
  • the user of a vehicle comprising such an installation can define areas of the passenger compartment where he wishes the heating, ventilation and / or air conditioning installation to propel air.
  • shutters also called members for regulating an air flow.
  • the shutters generally have two main functions: to ensure the distribution of the air when it enters and in the passenger compartment according to the preferences of the user of the vehicle on the one hand, and to contribute to the sealing of the pipes of the vehicle. 'air on the other hand.
  • shutters are subjected to two main forces: the pressure of the air circulating in the heating, ventilation and / or air conditioning installation and torsional forces when the shutters prevent the air flow from coming out. towards the interior of the vehicle according to the preferences of the user, for example.
  • the shutter In general, the shutter must be sufficiently rigid to withstand the air pressure caused by the use of the heating, ventilation and / or air conditioning installation. Indeed, if the shutter bends, this can cause unwanted air leaks in the installation. On the other hand, the shutter must not deform or even break under the effect of torsional forces. In order to prevent these drawbacks, the shutters generally include reinforcing parts. However, these reinforcing parts have an impact on the weight, on the size, or even on the production costs of such shutters.
  • this shutter can be improved so that it can have better resistance, in particular to torsional forces.
  • such a shutter has a certain complexity because its rigidity is conferred on it by the intersection of different sections. It also seems to have a fairly high manufacturing cost. Furthermore, such a shutter seems to depend on the ventilation, heating and / or air conditioning installation in which it is intended to be installed. It therefore seems necessary to carry out sufficiently long and complex experimental designs to determine the sizes and dimensions of the different sections in order to develop such a shutter for different heating, ventilation and / or air conditioning installations presenting various and varied sizes. Thus, such a shutter shutter does not seem to be able to limit the manufacturing costs, or even a reduction in the weight of such an installation.
  • the object of the invention is therefore to at least partially overcome the problems of the prior art described above by proposing a shutter, in particular for a heating, ventilation and / or air conditioning installation, the mass of which is optimized and the resistance of which, in particular to torsional forces, is at least equivalent to that of the shutter flaps of the prior art.
  • Another objective of the invention is to provide a shutter whose production costs are optimized.
  • the rotation shaft has a semi-elliptical-shaped surface, makes it possible to obtain a shutter minimum thickness shutter while maintaining good resistance to the forces that said shutter will undergo intrinsically in its use, such as torsional forces, or linked to the pressure of the air circulating in the ventilation duct.
  • Obtaining a shutter of minimum thickness makes it possible to reduce the mass thereof compared with known shutter shutters. This therefore makes it possible to reduce the mass of the heating, ventilation and / or air conditioning installation comprising such shutters.
  • the shape of the rotation shaft prevents the risk of deformation or breakage of the shutter in order to maintain optimal operating condition of the heating, ventilation and / or air conditioning installation thanks to good distribution of these forces on the rotation shaft.
  • the shutter according to the present invention may further include one or more of the following characteristics taken alone or in combination.
  • the large diameter of the rotation shaft is between 65% and 100% of the total length of the shutter, preferably between 80% and 100% of the total length of the shutter, and the small radius of the rotation shaft is between 50% and 100% of the total width of the shutter.
  • the first row of material withdrawals and the second row of material withdrawals are arranged alternately on the first face and on the second face of the shutter.
  • the material withdrawals have a depth greater than or equal to 50% of the thickness of the rotation shaft, and preferably between 75 and 95% of the thickness of the rotation shaft.
  • the longitudinal rib has a height equal to the thickness of the rotation shaft at its location.
  • the at least one side wall comprises at least one radial rib extending perpendicular to the axis of rotation of said shutter flap, said radial rib originating at a peripheral end of the wall. side opposite to the axis of rotation of the shutter and extending to the periphery of the rotation shaft.
  • the at least one side wall has at least three radial ribs equidistant from each other.
  • the shutter has two side walls and the semi-elliptical shaped rotation shaft extending on each of the side walls on either side of the axis of rotation of the shutter.
  • the first and second faces of the shutter each have an axial symmetry with respect to the large diameter of the rotation shaft.
  • the material withdrawals have a substantially parallelepipedal shape, and preferably a diamond shape.
  • the present invention also relates to a heating, ventilation and / or air conditioning installation characterized in that it comprises at least one shutter as defined above.
  • a shutter 1 for shutting off an air flow having an axis of rotation 3 rotating about an imaginary axis of rotation R, a first face 5 ( figure 1A ), and a second side 7 ( figure 1B ) opposite to the first face 5.
  • the first 5 and second 7 faces of the shutter 1 define a plane.
  • the shutter 1 further comprises a rotation shaft 9 projecting relative to each face of the plane defined by the first 5 and second 7 faces of the shutter 1, and at least one side wall 11 having a flat surface of substantially parallelepiped shape arranged radially to the rotation shaft 9.
  • the side wall 11 has a rectangular shape and comprises a peripheral frame 12 on which is optionally disposed a seal 23.
  • the seal sealing 23 is configured to limit as much as possible the aeraulic losses which may occur in order to increase the efficiency of the closing flap 1.
  • the shutter flap 1 has the function of closing or not a pipe. air from the heating, ventilation and / or air conditioning system. The presence of this seal 23 makes it possible to improve this sealing function.
  • the closure flap 1 has a single side wall 11. Such a closure flap 1 can also be called a flag flap.
  • the rotation shaft 9 has, in the plane of the at least one side wall 11, a semi-elliptical shape 13 extending over said at least one side wall 11. Said semi-circular shape. -elliptical 13 has a large diameter G1 coincident with the axis of rotation 3 of the shutter 1 and a small radius P1 parallel to the plane of at least one side wall 11.
  • the semi-elliptical shape 13 of the shaft rotation 9 makes it possible to increase the resistance of the shutter 1 to torsional forces, linked to the air flow that the shutter 1 prevents from passing, for example that it may be brought to undergo in an intrinsic manner to its use.
  • this rotation shaft 9 of semi-elliptical shape 13 makes it possible to reduce the thickness of the side wall 11 and therefore the mass of the shutter 1 while allowing the side wall 11 to maintain at least equivalent rigidity. to that of the side walls of the shutters known from the prior art.
  • the structural integrity of the shutter 1 is therefore preserved because its resistance to the various forces that it may have to undergo is at least equivalent to that of the shutter shutters known from the prior art.
  • the large diameter G1 of the rotation shaft 9 is between 65% and 100% of the total length L of the shutter 1, and more particularly between 80% and 100% of the total length L of the shutter.
  • shutter 1 and the small radius P1 of the rotation shaft 9 is between 50% and 100% of the total width 1 of the shutter 1.
  • the dimensions of the rotation shaft 9 are important so that the shutter 1 can withstand the various forces that it will undergo during its use. Indeed, if the dimensions of the semi-elliptical shape 13 making up the rotation shaft 9 are less than 65% of the total length L and 50% of the total width 1 of the shutter 1, the shutter 1 risk of bending or breaking. In such a case, it can no longer fulfill its role of blocking an air duct of the heating, ventilation and / or air conditioning installation because it has significant aeraulic losses.
  • the first face 5 comprises at least a first row of material withdrawals 15a and the second face 7 of the shutter 1 has at least a second row of material withdrawals 15b arranged at the level of the rotation shaft 9 parallel to the axis of rotation 3 of the shutter 1.
  • the material withdrawals 15a, 15b correspond to blind holes.
  • the first face 5 has two first rows of material withdrawals 15a ( figure 1A ) one of which is disposed at the level of the imaginary axis of rotation R and the other is disposed at the level of the periphery of the rotation shaft 9.
  • the second face 7 has for its part a second row of material withdrawals 15b ( figure 1B ) disposed substantially in the center of the semi-elliptical shape 13 of the rotation shaft 9.
  • material withdrawals 15a, 15b at the level of the rotation shaft 9 make it possible to reduce the mass of the shutter 1 while allowing to the latter to maintain good resistance to the various forces that it may be brought to undergo by the presence of the rotation shaft 9 projecting from the side wall 11.
  • the material withdrawals 15a, 15b are arranged alternately on the first face 5 and on the second face 7 of the shutter 1. More precisely, the rows of material withdrawals 15a from the first face 5 and the rows of material withdrawals 15b from the second face 7 are arranged offset relative to each other on the faces 5, 7 of the shutter 1, as shown in more detail with reference to figures 2C and 2D . Furthermore, the material withdrawals 15a, 15b have a depth P greater than or equal to 50% of the thickness E of the rotation shaft 9, and preferably between 75 and 95% of the thickness E of the rotation shaft 9, as is also shown with reference to figures 2C and 2D .
  • the rotation shaft 9 also has at least one longitudinal rib 17 disposed substantially at the center of the material recesses 15a, 15b and parallel to the large diameter G1 of the rotation shaft 9. More precisely, the rotation shaft 9 has a first row of material withdrawals 15a comprising a first longitudinal rib 17a disposed at the level of the axis of rotation 3 of the shutter 1 on the first face 5 of the shutter 1 ( figure 1A ) and a second row of material withdrawals 15b comprising a second longitudinal rib 17b arranged on the second face 7 of the shutter 1 so offset from the axis of rotation 3 of the shutter 1 ( figure 1B ).
  • the presence of these first 17a and second 17b longitudinal ribs also makes it possible to contribute to the increase in the resistance of the shutter 1 to the various forces that it may have to undergo, and in particular to the torsional forces.
  • such a flag-type shutter 1 can be used to close or not the ventilation ducts in a heating, ventilation and / or air conditioning installation in order to make it possible to reduce its general mass without prejudicing the proper functioning of this device. installation.
  • a shutter 1 comprising two side walls 11 and a rotation shaft 9 of semi-elliptical shape 13 for each side walls 11 extending on either side of the axis of rotation 3 of the shutter shutter 1.
  • the rotation shaft 9 here has an elliptical shape since there are two side walls 11 and the rotation shaft 9 has a semi-elliptical shape, or shaped surface 13 for each side wall 11.
  • a shutter 1 comprising two side walls 11 and a semi-elliptical rotation shaft 9 13 for the two side walls 11.
  • Such a shutter 1 can also be called butterfly shutter.
  • the use of such a shutter 1, during the operation of the ventilation, heating and / or air conditioning installation, can alternatively allow different air inlets or outlets to be closed.
  • the shutter 1 according to this second example comprises the same items that the flag pane described previously. In order not to overload the description, only the additional elements are described here.
  • the first 5 and second 7 faces of the shutter 1 each have an axial symmetry with respect to the large diameter G1 of the rotation shaft 9 of the shutter 1.
  • the recesses of material 15a, 15b have a substantially parallelepipedal shape, and more particularly a diamond shape according to this exemplary embodiment.
  • the first face 5 has a first longitudinal rib 17a and the second face 7 of the shutter 1 has two second longitudinal ribs 17b arranged on either side of the axis of rotation 3 of the shutter. shutter 1.
  • the shutter 1 in cross section according to this second embodiment. More precisely, the figure 2C corresponds to the transverse section of the shutter according to a first section plane C1 (visible on the figures 2A and 2B ). The first cutting plane C1 passes through the middle of the material withdrawals 15a of the first face 5 of the shutter 1 parallel to the small radius P1 of the semi-elliptical shape 13 of the rotation shaft 9. Furthermore, the 2D figure corresponds to the cross section of the shutter 1 according to a second section plane C2 (visible on the figures 2A and 2B ).
  • the second cutting plane C2 passes through the middle of the material withdrawals 15b of the second face 7 of the shutter 1 parallel to the small radius P1 of the semi-elliptical shape 13 of the rotation shaft 9.
  • the material withdrawals 15a (visible on the 2D figure ) of the first face 5 are arranged alternately with respect to the material withdrawals 15b (visible on the figure 2C ).
  • alternation is meant here that the withdrawals of material 15a from the first face 5 do not overlap with the withdrawals of material 15b from the second face 7.
  • the withdrawals of material 15a from the first face 5 and the withdrawals of material 15b of the second face 7 are arranged on the rotation shaft 9 offset from each other over the width 1 of the shutter 1.
  • the material withdrawals 15a, 15b have a depth P of between 75 and 95% of the thickness E of the rotation shaft 9 at the level of the axis of rotation 3
  • the withdrawals of material 15a, 15b make it possible to reduce the mass of the shutter 1 as much as possible without prejudicing the resistance of the shutter 1 to the various forces that it will undergo due to its use.
  • the rotation shaft 9 at the bottom of the material recesses 15a, 15b has a thickness substantially equal to the thickness of the side wall 11 of the shutter 1.
  • the longitudinal ribs 17 preferably have a height H equal to the thickness E of the rotation shaft 9 at their location.
  • FIG. 1 With reference to figures 3A to 3C , there is shown a shutter 1 of the butterfly type.
  • this third embodiment all of the elements appearing in the second embodiment described above are present. In order not to overload the description, only the additional elements are described here.
  • each side wall 11 optionally comprises at least one radial rib 19 extending perpendicular to the axis of rotation 3 of said shutter 1.
  • This radial rib 19 originates at a peripheral end of the side wall 11 opposite the axis of rotation 3 of the shutter 1, and more precisely at the level of the peripheral frame 12 of the side wall 11.
  • the radial rib 19 extends to the periphery of the semi-form. -elliptical 13 of the rotation shaft 9.
  • each side wall 11 has a plurality of radial ribs 19 equidistant from each other and separated by a distance D.
  • the shutter 1 has six radial ribs 19 equidistant from each other.
  • This distribution of the various radial ribs 19 allows a good distribution of the torsional forces, for example on each radial rib 19 in addition to the distribution of the forces which takes place on the rotation shaft 9, which contributes to the stiffening of the side walls. 11 and therefore to the stiffening of the shutter 1.
  • This distribution radial ribs 19 therefore contribute to increasing the resistance, in particular to torsional forces, of the shutter 1.
  • the radial ribs 19 have a variable thickness with respect to the plane defined by the side wall 11. More precisely, the radial ribs 19 have a thickness substantially equal to that of the peripheral frame 12 at its end in contact with the peripheral frame 12 of the side wall 11 and a thickness substantially equal to that of the rotation shaft 9, at the periphery of the semi-elliptical shape 13, at its end in contact with the periphery of the rotation shaft 9 This variability in the thickness of the radial ribs 19 also contributes to the increase in the rigidity of the side walls 11 of the shutter 1.
  • the radial ribs 19 are arranged on the first 5 and the second 7 faces of a shutter 1 of flag type, that is to say having only one side wall 11.
  • the shutter 1 has a plurality of radial ribs 19 equidistant from each other.
  • the radial ribs 19 have a constant thickness over the whole of the side wall 11. This constant thickness may for example correspond to the thickness of the peripheral frame 12.
  • FIG. 4C there is shown a shutter 1 of the butterfly type.
  • this fourth embodiment all of the elements of the third embodiment described above are present. As before, so as not to overload the description, only the additional elements are described here.
  • the first 5 and second 7 faces of the side wall 11 optionally have two diagonal ribs 21.
  • Each diagonal rib 21 extends from an end angle A of the side wall 11 towards the axis of rotation 3.
  • shutter 1 forms an angle ⁇ between 20 ° and 60 ° with a longitudinal side D of the side wall 11.
  • the diagonal ribs 21 extend to the crossing of the radial rib 19 closest to the end angle A from which the rib originates.
  • the presence of a diagonal rib 21 at each end angle A of the side wall 11 on the first face 5 and on the second face 7 of the shutter 1 makes it possible to stiffen the end angles A of the side wall 11 when subjected to high pressures, for example so that it is not caused to twist or bend.
  • the diagonal ribs 21 also contribute to increasing the rigidity of the shutter 1 and therefore to its resistance to the various forces that it may undergo due to its use in a ventilation, heating and / or air conditioning installation. .
  • the diagonal ribs 21, like the radial ribs 19, have a variable thickness with respect to the plane of the side wall 11. More precisely, the diagonal ribs 21 have a thickness substantially equal to the thickness of the peripheral frame 12 at the level of the end angle A of the side wall 11 and a thickness substantially equal to that of the rotation shaft 9 at its intersection with the radial rib 19. This variability in the thickness of the diagonal ribs 21 also contributes to the increase in the resistance, in particular to torsional forces, of the side walls 11 and therefore to the increase in the rigidity of the shutter 1.
  • the shutter 1 has two side walls 11 on which only the diagonal ribs 21 are present.
  • the diagonal ribs 21 have a constant thickness.
  • This constant thickness can for example be equal to the thickness of the peripheral frame 12 of the side wall 11.
  • the shutter 1 corresponds to a flag type shutter.
  • the shutter 1 has on its first 5 and second face 7 a diagonal rib 21 disposed at the level of the end angles A of the side wall 11.
  • the radial ribs 19 may be present or absent.
  • exemplary embodiments are provided by way of illustrative and non-limiting examples. Indeed, it is quite possible for those skilled in the art without departing from the scope of the present invention to modify the geometric shape of the material withdrawals, to make them adopt any shape other than a substantially parallelepiped shape, such as for example circular shapes. Likewise, a person skilled in the art may use a shutter having radial or diagonal ribs on only one face of the shutter in order to obtain a shutter having properties of resistance to various stresses. improved, or even design a shutter having a symmetry with respect to the axis of rotation for the material withdrawals but not for the diagonal or radial ribs.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Air-Conditioning For Vehicles (AREA)

Description

La présente invention concerne le domaine des installations de chauffage, ventilation et/ou climatisation. Plus particulièrement, l'invention concerne le domaine des volets d'obturation de flux d'air destinés à équiper de telles installations.The present invention relates to the field of heating, ventilation and / or air conditioning installations. More particularly, the invention relates to the field of air flow shutters intended to equip such installations.

Dans le domaine automobile, il est fréquent d'équiper un véhicule d'une installation de chauffage, ventilation et/ou de climatisation pour réguler les paramètres aérothermiques de l'air contenu dans l'habitacle du véhicule en distribuant de l'air dans l'habitacle du véhicule. Une telle installation est également désignée par l'abréviation HVAC pour « Heating Ventilation and Air Conditioning » en anglais (chauffage, ventilation et conditionnement d'air en français). De nos jours, l'utilisateur d'un véhicule comportant une telle installation peut définir des zones de l'habitacle où il souhaite que l'installation de chauffage, ventilation et/ou climatisation propulse de l'air. A cet effet, de telles installations sont équipées de volets d'obturation, également appelés organes de régulation d'un flux d'air.In the automotive field, it is common to equip a vehicle with a heating, ventilation and / or air conditioning system to regulate the aerothermal parameters of the air contained in the passenger compartment of the vehicle by distributing air in the interior of the vehicle. Such an installation is also designated by the abbreviation HVAC for “Heating Ventilation and Air Conditioning” in English. Nowadays, the user of a vehicle comprising such an installation can define areas of the passenger compartment where he wishes the heating, ventilation and / or air conditioning installation to propel air. For this purpose, such installations are equipped with shutters, also called members for regulating an air flow.

Les volets d'obturation présentent généralement deux fonctions principales : assurer la distribution de l'air lorsqu'il entre et dans l'habitacle selon les préférences de l'utilisateur du véhicule d'une part, et contribuer à l'étanchéité des conduites d'air d'autre part.The shutters generally have two main functions: to ensure the distribution of the air when it enters and in the passenger compartment according to the preferences of the user of the vehicle on the one hand, and to contribute to the sealing of the pipes of the vehicle. 'air on the other hand.

Ces volets d'obturation sont soumis à deux forces principales : la pression de l'air circulant dans l'installation de chauffage, ventilation et/ou climatisation et des forces de torsion lorsque les volets d'obturation empêchent le flux d'air de sortir vers l'habitacle du véhicule selon les préférences de l'utilisateur par exemple.These shutters are subjected to two main forces: the pressure of the air circulating in the heating, ventilation and / or air conditioning installation and torsional forces when the shutters prevent the air flow from coming out. towards the interior of the vehicle according to the preferences of the user, for example.

Actuellement, le poids et la taille de tels volets d'obturation sont deux critères importants. En effet, dans le but de réduire les consommations énergétiques des véhicules, il est nécessaire d'optimiser le poids de chacun de ses composants. Cette optimisation du poids entraîne généralement la réduction des tailles et de l'épaisseur des différents composants, cette réduction de la taille ou de l'épaisseur devant se faire sans préjudice à la fiabilité et à la résistance des composants. Enfin, un dernier critère important réside dans les coûts de fabrication d'une telle installation et donc dans les coûts de fabrication de chacun des composants de celle-ci, cette réduction des coûts devant se faire sans préjudice à la qualité et à la fiabilité de l'installation de chauffage, ventilation et/ou climatisation.Currently, the weight and size of such shutters are two important criteria. In fact, in order to reduce the energy consumption of vehicles, it is necessary to optimize the weight of each of its components. This weight optimization generally leads to a reduction in the sizes and thickness of the various components, this reduction in size or thickness having to be done without prejudice to the reliability and strength of the components. Finally, a last important criterion lies in the manufacturing costs of such an installation and therefore in the manufacturing costs of each of its components, this cost reduction having to be done without prejudice to the quality and reliability of the heating, ventilation and / or air conditioning installation.

De manière générale, le volet d'obturation doit être suffisamment rigide pour résister à la pression de l'air provoquée par l'utilisation de l'installation de chauffage, ventilation et/ou climatisation. En effet, si le volet se plie, cela peut provoquer des fuites d'air indésirables dans l'installation. D'autre part, le volet d'obturation ne doit pas se déformer ou encore se rompre sous l'effet des forces de torsion. Afin de prévenir ces inconvénients, les volets d'obturation comprennent généralement des parties de renfort. Cependant, ces parties de renfort ont un impact sur le poids, sur la taille, ou encore sur les coûts de production de tels volets d'obturation.In general, the shutter must be sufficiently rigid to withstand the air pressure caused by the use of the heating, ventilation and / or air conditioning installation. Indeed, if the shutter bends, this can cause unwanted air leaks in the installation. On the other hand, the shutter must not deform or even break under the effect of torsional forces. In order to prevent these drawbacks, the shutters generally include reinforcing parts. However, these reinforcing parts have an impact on the weight, on the size, or even on the production costs of such shutters.

On connaît du document EP 1826043 , un volet d'obturation présentant une forme ondulée, notamment constituée par des éléments de renfort perpendiculaires à l'axe de rotation du volet d'obturation.We know from the document EP 1826043 , a shutter having a corrugated shape, in particular constituted by reinforcing elements perpendicular to the axis of rotation of the shutter.

Cependant, la rigidité de ce volet d'obturation peut être améliorée afin qu'il puisse présenter une meilleure résistance notamment aux efforts de torsion.However, the rigidity of this shutter can be improved so that it can have better resistance, in particular to torsional forces.

On connaît également du document US 2014/0261822 , un volet d'obturation dont la rigidité a été améliorée afin de mieux résister aux différentes forces auxquelles il va être soumis. Ce volet d'obturation présente une forme ondulée et des sections parallèles et d'autres perpendiculaires à l'axe de rotation de celui-ci afin de lui conférer une meilleure rigidité.We also know from the document US 2014/0261822 , a shutter whose rigidity has been improved in order to better withstand the various forces to which it will be subjected. This shutter has a wavy shape and parallel sections and others perpendicular to the axis of rotation thereof in order to give it better rigidity.

Cependant, un tel volet d'obturation présente une certaine complexité car sa rigidité lui est conférée par l'intersection de différentes sections. Il semble également présenter un coût de fabrication assez élevé. Par ailleurs, un tel volet d'obturation semble être dépendant de l'installation de ventilation, chauffage et/ou climatisation dans lequel il est destiné à être installé. Il semble donc nécessaire d'effectuer des plans d'expérience assez longs et complexes pour déterminer les tailles et les dimensions des différentes sections afin de mettre au point un tel volet d'obturation pour différentes installation de chauffage, ventilation et/ou climatisation présentant des tailles diverses et variées. Ainsi, un tel volet d'obturation ne semble pas pouvoir permettre de limiter les coûts de fabrication, ni même une réduction du poids d'une telle installation.However, such a shutter has a certain complexity because its rigidity is conferred on it by the intersection of different sections. It also seems to have a fairly high manufacturing cost. Furthermore, such a shutter seems to depend on the ventilation, heating and / or air conditioning installation in which it is intended to be installed. It therefore seems necessary to carry out sufficiently long and complex experimental designs to determine the sizes and dimensions of the different sections in order to develop such a shutter for different heating, ventilation and / or air conditioning installations presenting various and varied sizes. Thus, such a shutter shutter does not seem to be able to limit the manufacturing costs, or even a reduction in the weight of such an installation.

On connaît également du document EP 2631098 , un volet d'obturation dont l'arbre de rotation présente une forme elliptique et des retraits de matière.We also know from the document EP 2631098 , a shutter whose rotation shaft has an elliptical shape and material withdrawals.

L'invention a donc pour objectif de pallier au moins partiellement les problèmes de l'art antérieur exposés ci-dessus en proposant un volet d'obturation, notamment pour une installation de chauffage, ventilation et/ou climatisation, dont la masse est optimisée et dont la résistance, notamment aux efforts de torsion, est au moins équivalente à celle des volets d'obturation de l'art antérieur.The object of the invention is therefore to at least partially overcome the problems of the prior art described above by proposing a shutter, in particular for a heating, ventilation and / or air conditioning installation, the mass of which is optimized and the resistance of which, in particular to torsional forces, is at least equivalent to that of the shutter flaps of the prior art.

Un autre objectif de l'invention, indépendant des objectifs précédents, est de proposer un volet d'obturation dont les coûts de production sont optimisés.Another objective of the invention, independent of the preceding objectives, is to provide a shutter whose production costs are optimized.

A cet effet, pour atteindre au moins un des objectifs précités au moins partiellement, la présente invention, telle que définie dans la revendication 1, a pour objet un volet d'obturation d'un flux d'air présentant un axe de rotation, une première face, et une deuxième face opposée à la première face, lesdites première et deuxième faces du volet d'obturation définissant un plan, ledit volet d'obturation comprenant :

  • un arbre de rotation saillant de chaque face du plan défini par les première et deuxième faces du volet d'obturation, et
  • au moins une paroi latérale présentant une surface plane de forme sensiblement parallélépipédique agencée radialement à l'arbre de rotation,
caractérisé en ce que l'arbre de rotation présente, dans le plan de l'au moins une paroi latérale, une forme semi-elliptique s'étendant sur ladite au moins une paroi latérale, ladite forme semi-elliptique comportant un grand diamètre confondu avec l'axe de rotation du volet d'obturation et un petit rayon parallèle au plan de l'au moins une paroi latérale, la première face présentant au moins une première rangée de retraits de matière et la deuxième face du volet d'obturation présente au moins une deuxième rangée de retraits de matière, lesdites rangées de retraits de matière étant disposées au niveau de l'arbre de rotation parallèlement à l'axe de rotation du volet d'obturation, lesdits retraits de matière correspondant à des orifices borgnes, caractérisé en ce que l'arbre de rotation présente en outre au moins une nervure longitudinale disposée sensiblement au centre des retraits de matière et parallèle au grand diamètre de l'arbre de rotation, l'arbre de rotation présentant une première rangée de retraits de matière comprenant une première nervure longitudinale disposée au niveau de l'axe de rotation du volet d'obturation sur la première face du volet d'obturation et une deuxième rangée de retraits de matière comprenant une deuxième nervure longitudinale sur la deuxième face du volet d'obturation de manière décalée à l'axe de rotation du volet d'obturation.To this end, to achieve at least one of the aforementioned objectives at least partially, the present invention, as defined in claim 1, relates to a shutter for closing off an air flow having an axis of rotation, a first face, and a second face opposite to the first face, said first and second faces of the shutter flap defining a plane, said shutter flap comprising:
  • a rotation shaft projecting from each face of the plane defined by the first and second faces of the shutter, and
  • at least one side wall having a planar surface of substantially parallelepiped shape arranged radially to the rotation shaft,
characterized in that the rotation shaft has, in the plane of the at least one side wall, a semi-elliptical shape extending over said at least one side wall, said semi-elliptical shape having a large diameter coincident with the axis of rotation of the shutter and a small radius parallel to the plane of the at least one side wall, the first face having at least a first row of material withdrawals and the second face of the shutter present at the at least a second row of material withdrawals, said rows of material withdrawals being arranged at the level of the rotation shaft parallel to the axis of rotation of the shutter flap, said material withdrawals corresponding to blind holes, characterized in that the rotation shaft further has at least one longitudinal rib disposed substantially at the center of the material recesses and parallel to the large diameter of the rotation shaft, the rotation shaft having a first 1st row of material withdrawals comprising a first longitudinal rib arranged at the level of the axis of rotation of the shutter flap on the first face of the shutter flap and a second row of material withdrawals comprising a second longitudinal rib on the second face of the shutter so offset from the axis of rotation of the shutter.

La présence de l'arbre de rotation de forme semi-elliptique, autrement dit l'arbre de rotation présente une surface en forme de semi-ellipse, permet d'obtenir un volet d'obturation d'épaisseur minimale tout en conservant une bonne résistance aux forces que ledit volet d'obturation va subir de manière intrinsèque à son utilisation, comme par exemple des forces de torsion, ou encore liées à la pression de l'air circulant dans le conduit de ventilation.The presence of the semi-elliptical-shaped rotation shaft, in other words the rotation shaft has a semi-elliptical-shaped surface, makes it possible to obtain a shutter minimum thickness shutter while maintaining good resistance to the forces that said shutter will undergo intrinsically in its use, such as torsional forces, or linked to the pressure of the air circulating in the ventilation duct.

L'obtention d'un volet d'épaisseur minimale permet de réduire la masse de celui-ci par rapport aux volets d'obturation connus. Cela permet donc de diminuer la masse de l'installation de chauffage, ventilation et/ou climatisation comportant de tels volets d'obturation.Obtaining a shutter of minimum thickness makes it possible to reduce the mass thereof compared with known shutter shutters. This therefore makes it possible to reduce the mass of the heating, ventilation and / or air conditioning installation comprising such shutters.

De plus, la forme de l'arbre de rotation permet de prévenir les risques de déformations ou de ruptures du volet d'obturation afin de conserver un état de fonctionnement optimal de l'installation de chauffage, ventilation et/ou climatisation grâce à une bonne répartition de ces forces sur l'arbre de rotation.In addition, the shape of the rotation shaft prevents the risk of deformation or breakage of the shutter in order to maintain optimal operating condition of the heating, ventilation and / or air conditioning installation thanks to good distribution of these forces on the rotation shaft.

Le volet d'obturation selon la présente invention peut comporter en outre une ou plusieurs des caractéristiques suivantes prise seule ou en combinaison.The shutter according to the present invention may further include one or more of the following characteristics taken alone or in combination.

Le grand diamètre de l'arbre de rotation est compris entre 65 % et 100 % de la longueur totale du volet d'obturation, de préférence compris entre 80 % et 100 % de la longueur totale du volet d'obturation, et le petit rayon de l'arbre de rotation est compris entre 50 % et 100 % de la largeur totale du volet d'obturation.The large diameter of the rotation shaft is between 65% and 100% of the total length of the shutter, preferably between 80% and 100% of the total length of the shutter, and the small radius of the rotation shaft is between 50% and 100% of the total width of the shutter.

La première rangée de retraits de matière et la deuxième rangée de retraits de matière sont disposées en alternance sur la première face et sur la deuxième face du volet d'obturation.The first row of material withdrawals and the second row of material withdrawals are arranged alternately on the first face and on the second face of the shutter.

Selon une variante, les retraits de matière présentent une profondeur supérieure ou égale à 50 % de l'épaisseur de l'arbre de rotation, et de préférence comprise entre 75 et 95 % de l'épaisseur de l'arbre de rotation.According to one variant, the material withdrawals have a depth greater than or equal to 50% of the thickness of the rotation shaft, and preferably between 75 and 95% of the thickness of the rotation shaft.

Selon une variante, la nervure longitudinale présente une hauteur égale à l'épaisseur de l'arbre de rotation à son emplacement.According to one variant, the longitudinal rib has a height equal to the thickness of the rotation shaft at its location.

Selon un mode de réalisation particulier, la au moins une paroi latérale comprend au moins une nervure radiale s'étendant perpendiculairement à l'axe de rotation dudit volet d'obturation, ladite nervure radiale prenant naissance au niveau d'une extrémité périphérique de la paroi latérale opposée à l'axe de rotation du volet d'obturation et s'étendant jusqu'à la périphérie de l'arbre de rotation.According to a particular embodiment, the at least one side wall comprises at least one radial rib extending perpendicular to the axis of rotation of said shutter flap, said radial rib originating at a peripheral end of the wall. side opposite to the axis of rotation of the shutter and extending to the periphery of the rotation shaft.

Selon une variante de ce mode de réalisation, la au moins une paroi latérale présente au moins trois nervures radiales équidistantes les unes des autres.According to a variant of this embodiment, the at least one side wall has at least three radial ribs equidistant from each other.

De manière alternative, le volet d'obturation comporte deux parois latérales et l'arbre de rotation de forme semi-elliptique s'étendant sur chacune des parois latérales de part et d'autre de l'axe de rotation du volet d'obturation.Alternatively, the shutter has two side walls and the semi-elliptical shaped rotation shaft extending on each of the side walls on either side of the axis of rotation of the shutter.

Selon cette alternative, les première et deuxième faces du volet d'obturation présentent chacune une symétrie axiale par rapport au grand diamètre de l'arbre de rotation.According to this alternative, the first and second faces of the shutter each have an axial symmetry with respect to the large diameter of the rotation shaft.

Selon un mode de réalisation particulier, les retraits de matière présentent une forme sensiblement parallélépipédique, et de préférence une forme de losange.According to a particular embodiment, the material withdrawals have a substantially parallelepipedal shape, and preferably a diamond shape.

La présente invention a également pour objet une installation de chauffage, ventilation et/ou climatisation caractérisée en ce qu'elle comprend au moins un volet d'obturation tel que défini précédemment.The present invention also relates to a heating, ventilation and / or air conditioning installation characterized in that it comprises at least one shutter as defined above.

D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description suivante, donnée à titre d'exemple illustratif et non limitatif, ainsi que des dessins annexés dans lesquels :

  • la figure 1A est une représentation schématique de dessus d'une première face d'un volet d'obturation présentant une seule paroi latérale selon un premier mode de réalisation,
  • la figure 1B est une représentation schématique de dessus d'une deuxième face du volet d'obturation de la figure 1A,
  • la figure 2A est une représentation schématique de dessus d'une première face d'un volet d'obturation présentant deux parois latérales selon un deuxième mode de réalisation,
  • la figure 2B est une représentation schématique de dessus d'une deuxième face du volet d'obturation de la figure 2A,
  • la figure 2C est une représentation schématique en coupe transversale selon un premier plan de coupe et en perspective du volet d'obturation de la figure 2A,
  • la figure 2D est une représentation schématique en coupe transversale selon un deuxième plan de coupe et en perspective du volet d'obturation de la figure 2A,
  • la figure 3A est une représentation schématique de dessus d'une première face d'un volet d'obturation selon un troisième mode de réalisation,
  • la figure 3B est une représentation schématique de dessus d'une deuxième face du volet d'obturation de la figure 3A,
  • la figure 3C est une représentation schématique en perspective de la première face du volet d'obturation de la figure 3A,
  • la figure 4A est une représentation schématique de dessus d'une première face d'un volet d'obturation selon un quatrième mode de réalisation,
  • la figure 4B est une représentation schématique de dessus d'une deuxième face du volet d'obturation de la figure 4A, et
  • la figure 4C est une représentation schématique en perspective de la première face du volet d'obturation de la figure 4A.
Other characteristics and advantages of the present invention will emerge more clearly on reading the following description, given by way of illustrative and non-limiting example, as well as the appended drawings in which:
  • the figure 1A is a schematic top view of a first face of a shutter having a single side wall according to a first embodiment,
  • the figure 1B is a schematic representation from above of a second face of the shutter shutter of the figure 1A ,
  • the figure 2A is a schematic top view of a first face of a shutter having two side walls according to a second embodiment,
  • the figure 2B is a schematic representation from above of a second face of the shutter shutter of the figure 2A ,
  • the figure 2C is a schematic representation in cross section along a first sectional plane and in perspective of the shutter of the figure 2A ,
  • the 2D figure is a schematic representation in cross section along a second sectional plane and in perspective of the shutter shutter of the figure 2A ,
  • the figure 3A is a schematic top view of a first face of a shutter according to a third embodiment,
  • the figure 3B is a schematic representation from above of a second face of the shutter shutter of the figure 3A ,
  • the figure 3C is a schematic perspective representation of the first face of the shutter of the figure 3A ,
  • the figure 4A is a schematic top view of a first face of a shutter according to a fourth embodiment,
  • the figure 4B is a schematic representation from above of a second face of the shutter shutter of the figure 4A , and
  • the figure 4C is a schematic perspective representation of the first face of the shutter of the figure 4A .

Sur ces figures, les éléments identiques portent les mêmes références numériques.In these figures, identical elements bear the same numerical references.

Les réalisations suivantes sont des exemples. Bien que la description se réfère à un ou plusieurs modes de réalisation, ceci ne signifie pas nécessairement que chaque référence concerne le même mode de réalisation, ou que les caractéristiques s'appliquent seulement à un seul mode de réalisation. De simples caractéristiques de différents modes de réalisation peuvent également être combinées ou interchangées pour fournir d'autres réalisations.The following embodiments are examples. Although the description refers to one or more embodiments, this does not necessarily mean that each reference relates to the same embodiment, or that the characteristics apply only to one embodiment. Simple features of different embodiments can also be combined or interchanged to provide other embodiments.

Dans la description suivante, il est fait référence à une première et à une deuxième face du volet d'obturation, à une première et une deuxième nervures longitudinales, à une première et une deuxième rangée de retraits de matière, ou encore à un premier et à un deuxième plan de coupe. Il s'agit d'un simple indexage pour différencier et dénommer des éléments proches mais non identiques. Cette indexation n'implique pas une priorité d'un élément par rapport à un autre et on peut aisément interchanger de telles dénominations sans sortir du cadre de la présente description. Cette indexation n'implique pas non plus un ordre dans le temps par exemple pour apprécier le fonctionnement du volet d'obturation.In the following description, reference is made to a first and a second face of the closure flap, to a first and a second longitudinal ribs, to a first and a second row of material withdrawals, or to a first and to a second section plane. This is a simple indexing to differentiate and name similar but not identical elements. This indexing does not imply a priority of one element over another and one can easily interchange such names. without departing from the scope of the present description. This indexing does not imply an order in time, for example, to assess the operation of the shutter.

Dans la description suivante, on entend par :

  • axe de rotation, un axe de rotation physique du volet d'obturation tournant autour d'un axe de rotation imaginaire,
  • longueur totale du volet, la longueur constituée par la longueur de la paroi latérale du volet d'obturation comprenant un cadre périphérique et éventuellement un joint d'étanchéité de part et d'autre ; cette longueur de la paroi latérale est parallèle à l'axe de rotation du volet d'obturation,
  • largeur totale du volet, la largeur constituée par la largeur de la paroi latérale du volet d'obturation, la largeur du cadre périphérique, et la largeur du joint d'étanchéité éventuel, cette largeur de la paroi latérale est perpendiculaire à l'axe de rotation du volet d'obturation,
  • côté latéral de la paroi latérale, le côté de la paroi latérale perpendiculaire à l'axe de rotation du volet d'obturation,
  • côté longitudinal de la paroi latérale, le côté extérieur de la paroi latérale parallèle à l'axe de rotation du volet d'obturation,
  • angle d'extrémité de la paroi latérale, l'angle formé par le côté latéral et le côté longitudinal du volet d'obturation,
  • plan de la paroi latérale, le plan comprenant la paroi latérale et l'axe de rotation imaginaire du volet d'obturation, et
  • symétrique, une symétrie par rapport à un plan passant par l'axe de rotation et perpendiculaire au plan défini par la toile du volet d'obturation.
In the following description, the term:
  • axis of rotation, a physical axis of rotation of the shutter rotating about an imaginary axis of rotation,
  • total length of the shutter, the length formed by the length of the side wall of the shutter comprising a peripheral frame and possibly a seal on either side; this length of the side wall is parallel to the axis of rotation of the shutter,
  • total width of the shutter, the width formed by the width of the side wall of the shutter shutter, the width of the peripheral frame, and the width of the possible seal, this width of the side wall is perpendicular to the axis of rotation of the shutter,
  • lateral side of the lateral wall, the side of the lateral wall perpendicular to the axis of rotation of the shutter,
  • longitudinal side of the side wall, the outer side of the side wall parallel to the axis of rotation of the shutter,
  • end angle of the side wall, the angle formed by the lateral side and the longitudinal side of the shutter,
  • plane of the side wall, the plane including the side wall and the imaginary axis of rotation of the shutter, and
  • symmetrical, symmetry with respect to a plane passing through the axis of rotation and perpendicular to the plane defined by the fabric of the shutter.

Premier exemple de réalisation :First example of realization:

En référence aux figures 1A et 1B, il est représenté un volet d'obturation 1 d'un flux d'air présentant un axe de rotation 3 tournant autour d'un axe de rotation imaginaire R, une première face 5 (figure 1A), et une deuxième face 7 (figure 1B) opposée à la première face 5. Selon cet exemple, les première 5 et deuxième 7 faces du volet d'obturation 1 définissent un plan.With reference to figures 1A and 1B , there is shown a shutter 1 for shutting off an air flow having an axis of rotation 3 rotating about an imaginary axis of rotation R, a first face 5 ( figure 1A ), and a second side 7 ( figure 1B ) opposite to the first face 5. According to this example, the first 5 and second 7 faces of the shutter 1 define a plane.

De plus, le volet d'obturation 1 comprend en outre un arbre de rotation 9 saillant par rapport à chaque face du plan défini par les première 5 et deuxième 7 faces du volet d'obturation 1, et au moins une paroi latérale 11 présentant une surface plane de forme sensiblement parallélépipédique agencée radialement à l'arbre de rotation 9. Selon cet exemple, la paroi latérale 11 présente une forme rectangulaire et comprend un cadre périphérique 12 sur lequel est disposé de manière optionnelle un joint d'étanchéité 23. Le joint d'étanchéité 23 est configuré pour limiter au maximum les pertes aérauliques qui peuvent se produire afin d'augmenter l'efficacité du volet d'obturation 1. En effet, le volet d'obturation 1 a pour fonction de fermer ou non une conduite d'air de l'installation de chauffage, ventilation et/ou climatisation. La présence de ce joint d'étanchéité 23 permet d'améliorer cette fonction d'obturation. Selon le mode de réalisation particulier représenté ici, le volet d'obturation 1 présente une seule paroi latérale 11. Un tel volet d'obturation 1 peut également être appelé volet drapeau.In addition, the shutter 1 further comprises a rotation shaft 9 projecting relative to each face of the plane defined by the first 5 and second 7 faces of the shutter 1, and at least one side wall 11 having a flat surface of substantially parallelepiped shape arranged radially to the rotation shaft 9. According to this example, the side wall 11 has a rectangular shape and comprises a peripheral frame 12 on which is optionally disposed a seal 23. The seal sealing 23 is configured to limit as much as possible the aeraulic losses which may occur in order to increase the efficiency of the closing flap 1. In fact, the shutter flap 1 has the function of closing or not a pipe. air from the heating, ventilation and / or air conditioning system. The presence of this seal 23 makes it possible to improve this sealing function. According to the particular embodiment shown here, the closure flap 1 has a single side wall 11. Such a closure flap 1 can also be called a flag flap.

Selon le mode de réalisation représenté ici, l'arbre de rotation 9 présente, dans le plan de l'au moins une paroi latérale 11, une forme semi-elliptique 13 s'étendant sur ladite au moins une paroi latérale 11. Ladite forme semi-elliptique 13 comporte un grand diamètre G1 confondu avec l'axe de rotation 3 du volet d'obturation 1 et un petit rayon P1 parallèle au plan de l'au moins une paroi latérale 11. La forme semi-elliptique 13 de l'arbre de rotation 9 permet d'augmenter la résistance du volet d'obturation 1 aux efforts de torsion, liés au flux d'air que le volet d'obturation 1 empêche de passer, par exemple qu'il peut être amené à subir de manière intrinsèque à son utilisation. La présence de cet arbre de rotation 9 de forme semi-elliptique 13 permet de diminuer l'épaisseur de la paroi latérale 11 et donc la masse du volet d'obturation 1 tout en permettant à la paroi latérale 11 de conserver une rigidité au moins équivalente à celle des parois latérales des volets d'obturation connus de l'art antérieur. L'intégrité structurelle du volet d'obturation 1 est donc préservée car sa résistance aux différentes forces qu'il peut être amené à subir est au moins équivalente à celle des volets d'obturation connus de l'art antérieur.According to the embodiment shown here, the rotation shaft 9 has, in the plane of the at least one side wall 11, a semi-elliptical shape 13 extending over said at least one side wall 11. Said semi-circular shape. -elliptical 13 has a large diameter G1 coincident with the axis of rotation 3 of the shutter 1 and a small radius P1 parallel to the plane of at least one side wall 11. The semi-elliptical shape 13 of the shaft rotation 9 makes it possible to increase the resistance of the shutter 1 to torsional forces, linked to the air flow that the shutter 1 prevents from passing, for example that it may be brought to undergo in an intrinsic manner to its use. The presence of this rotation shaft 9 of semi-elliptical shape 13 makes it possible to reduce the thickness of the side wall 11 and therefore the mass of the shutter 1 while allowing the side wall 11 to maintain at least equivalent rigidity. to that of the side walls of the shutters known from the prior art. The structural integrity of the shutter 1 is therefore preserved because its resistance to the various forces that it may have to undergo is at least equivalent to that of the shutter shutters known from the prior art.

Selon le mode de réalisation particulier des figures 1A et 1B, le grand diamètre G1 de l'arbre de rotation 9 est compris entre 65 % et 100 % de la longueur totale L du volet d'obturation 1, et plus particulièrement entre 80 % et 100 % de la longueur totale L du volet d'obturation 1, et le petit rayon P1 de l'arbre de rotation 9 est compris entre 50 % et 100 % de la largeur totale 1 du volet d'obturation 1. Les dimensions de l'arbre de rotation 9 sont importantes pour que le volet d'obturation 1 puisse résister aux différentes forces qu'il va subir lors de son utilisation. En effet, si les dimensions de la forme semi-elliptique 13 composant l'arbre de rotation 9 sont inférieures à 65 % de la longueur totale L et 50 % de la largeur totale 1 du volet d'obturation 1, le volet d'obturation 1 risque de se plier ou de se rompre. Dans un tel cas, il ne peut plus remplir son rôle d'obturation d'une conduite d'air de l'installation de chauffage, ventilation et/ou climatisation car il présente des pertes aérauliques importantes.According to the particular embodiment of the figures 1A and 1B , the large diameter G1 of the rotation shaft 9 is between 65% and 100% of the total length L of the shutter 1, and more particularly between 80% and 100% of the total length L of the shutter. shutter 1, and the small radius P1 of the rotation shaft 9 is between 50% and 100% of the total width 1 of the shutter 1. The dimensions of the rotation shaft 9 are important so that the shutter 1 can withstand the various forces that it will undergo during its use. Indeed, if the dimensions of the semi-elliptical shape 13 making up the rotation shaft 9 are less than 65% of the total length L and 50% of the total width 1 of the shutter 1, the shutter 1 risk of bending or breaking. In such a case, it can no longer fulfill its role of blocking an air duct of the heating, ventilation and / or air conditioning installation because it has significant aeraulic losses.

Selon le mode de réalisation particulier représenté ici, la première face 5 comporte au moins une première rangée de retraits de matière 15a et la deuxième face 7 du volet d'obturation 1 présente au moins une deuxième rangée de retraits de matière 15b disposées au niveau de l'arbre de rotation 9 parallèlement à l'axe de rotation 3 du volet d'obturation 1. Les retraits de matière 15a, 15b correspondent à des orifices borgnes. Selon ce mode de réalisation particulier, la première face 5 présente deux premières rangées de retraits de matière 15a (figure 1A) dont une est disposée au niveau de l'axe de rotation imaginaire R et l'autre est disposée au niveau de la périphérie de l'arbre de rotation 9. La deuxième face 7 présente quant à elle une deuxième rangée de retraits de matière 15b (figure 1B) disposée sensiblement au centre de la forme semi-elliptique 13 de l'arbre de rotation 9. Ces retraits de matière 15a, 15b au niveau de l'arbre de rotation 9 permettent de diminuer la masse du volet d'obturation 1 tout en permettant à celui-ci de conserver une bonne résistance aux différentes forces qu'il peut être amené à subir par la présence de l'arbre de rotation 9 saillant de la paroi latérale 11.According to the particular embodiment shown here, the first face 5 comprises at least a first row of material withdrawals 15a and the second face 7 of the shutter 1 has at least a second row of material withdrawals 15b arranged at the level of the rotation shaft 9 parallel to the axis of rotation 3 of the shutter 1. The material withdrawals 15a, 15b correspond to blind holes. According to this particular embodiment, the first face 5 has two first rows of material withdrawals 15a ( figure 1A ) one of which is disposed at the level of the imaginary axis of rotation R and the other is disposed at the level of the periphery of the rotation shaft 9. The second face 7 has for its part a second row of material withdrawals 15b ( figure 1B ) disposed substantially in the center of the semi-elliptical shape 13 of the rotation shaft 9. These material withdrawals 15a, 15b at the level of the rotation shaft 9 make it possible to reduce the mass of the shutter 1 while allowing to the latter to maintain good resistance to the various forces that it may be brought to undergo by the presence of the rotation shaft 9 projecting from the side wall 11.

Selon le mode de réalisation particulier représenté ici, les retraits de matière 15a, 15b sont disposés en alternance sur la première face 5 et sur la deuxième face 7 du volet d'obturation 1. Plus précisément les rangées de retraits de matière 15a de la première face 5 et les rangées de retraits de matière 15b de la deuxième face 7 sont disposées de manière décalée les unes par rapport aux autres sur les faces 5, 7 du volet d'obturation 1, comme cela est représenté plus en détail en référence aux figures 2C et 2D. Par ailleurs, les retraits de matière 15a, 15b présentent une profondeur P supérieure ou égale à 50 % de l'épaisseur E de l'arbre de rotation 9, et de préférence comprise entre 75 et 95 % de l'épaisseur E de l'arbre de rotation 9, comme cela est également représenté en référence aux figures 2C et 2D.According to the particular embodiment shown here, the material withdrawals 15a, 15b are arranged alternately on the first face 5 and on the second face 7 of the shutter 1. More precisely, the rows of material withdrawals 15a from the first face 5 and the rows of material withdrawals 15b from the second face 7 are arranged offset relative to each other on the faces 5, 7 of the shutter 1, as shown in more detail with reference to figures 2C and 2D . Furthermore, the material withdrawals 15a, 15b have a depth P greater than or equal to 50% of the thickness E of the rotation shaft 9, and preferably between 75 and 95% of the thickness E of the rotation shaft 9, as is also shown with reference to figures 2C and 2D .

Selon le mode de réalisation particulier des figures 1A et 1B et de manière optionnelle, l'arbre de rotation 9 présente en outre au moins une nervure longitudinale 17 disposée sensiblement au centre des retraits de matière 15a, 15b et parallèle au grand diamètre G1 de l'arbre de rotation 9. Plus précisément, l'arbre de rotation 9 présente une première rangée de retraits de matière 15a comprenant une première nervure longitudinale 17a disposée au niveau de l'axe de rotation 3 du volet d'obturation 1 sur la première face 5 du volet d'obturation 1 (figure 1A) et une deuxième rangée de retraits de matière 15b comprenant une deuxième nervure longitudinale 17b disposée sur la deuxième face 7 du volet d'obturation 1 de manière décalée à l'axe de rotation 3 du volet d'obturation 1 (figure 1B). La présence de ces première 17a et deuxième 17b nervures longitudinales permet également de contribuer à l'augmentation de la résistance du volet d'obturation 1 aux différentes forces qu'il peut être amené à subir, et notamment aux efforts de torsion.According to the particular embodiment of the figures 1A and 1B and optionally, the rotation shaft 9 also has at least one longitudinal rib 17 disposed substantially at the center of the material recesses 15a, 15b and parallel to the large diameter G1 of the rotation shaft 9. More precisely, the rotation shaft 9 has a first row of material withdrawals 15a comprising a first longitudinal rib 17a disposed at the level of the axis of rotation 3 of the shutter 1 on the first face 5 of the shutter 1 ( figure 1A ) and a second row of material withdrawals 15b comprising a second longitudinal rib 17b arranged on the second face 7 of the shutter 1 so offset from the axis of rotation 3 of the shutter 1 ( figure 1B ). The presence of these first 17a and second 17b longitudinal ribs also makes it possible to contribute to the increase in the resistance of the shutter 1 to the various forces that it may have to undergo, and in particular to the torsional forces.

Ainsi, un tel volet d'obturation 1 de type drapeau peut être utilisé pour obturer ou non des conduits de ventilation dans une installation de chauffage, ventilation et/ou climatisation afin de permettre de diminuer sa masse générale sans porter préjudice au bon fonctionnement de cette installation.Thus, such a flag-type shutter 1 can be used to close or not the ventilation ducts in a heating, ventilation and / or air conditioning installation in order to make it possible to reduce its general mass without prejudicing the proper functioning of this device. installation.

Deuxième exemple de réalisation :Second example of realization:

En référence aux figures 2A à 2D, il est représenté un volet d'obturation 1 comportant deux parois latérales 11 et un arbre de rotation 9 de forme semi-elliptique 13 pour chaque parois latérales 11 s'étendant de part et d'autre de l'axe de rotation 3 du volet d'obturation 1. L'arbre de rotation 9 présente ici une forme d'ellipse étant donné qu'il y a deux parois latérales 11 et que l'arbre de rotation 9 présente une forme, ou surface en forme, semi-elliptique 13 pour chaque paroi latérale 11. On peut également envisager un volet d'obturation 1 comportant deux parois latérales 11 et un arbre de rotation 9 de forme semi-elliptique 13 pour les deux parois latérales 11. Un tel volet d'obturation 1 peut également être appelé volet papillon. L'utilisation d'un tel volet d'obturation 1, lors du fonctionnement de l'installation de ventilation, chauffage et/ou climatisation, peut permettre d'obturer de manière alternative différentes entrées ou sorties d'air. Le volet d'obturation 1 selon ce deuxième exemple comprend les mêmes éléments que le volet drapeau décrit précédemment. Afin de ne pas surcharger la description, seuls les éléments supplémentaires sont décrits ici.With reference to figures 2A to 2D , there is shown a shutter 1 comprising two side walls 11 and a rotation shaft 9 of semi-elliptical shape 13 for each side walls 11 extending on either side of the axis of rotation 3 of the shutter shutter 1. The rotation shaft 9 here has an elliptical shape since there are two side walls 11 and the rotation shaft 9 has a semi-elliptical shape, or shaped surface 13 for each side wall 11. One can also consider a shutter 1 comprising two side walls 11 and a semi-elliptical rotation shaft 9 13 for the two side walls 11. Such a shutter 1 can also be called butterfly shutter. The use of such a shutter 1, during the operation of the ventilation, heating and / or air conditioning installation, can alternatively allow different air inlets or outlets to be closed. The shutter 1 according to this second example comprises the same items that the flag pane described previously. In order not to overload the description, only the additional elements are described here.

Selon ce deuxième mode de réalisation, les première 5 et deuxième 7 faces du volet d'obturation 1 présentent chacune une symétrie axiale par rapport au grand diamètre G1 de l'arbre de rotation 9 du volet d'obturation 1. Par ailleurs, les retraits de matière 15a, 15b présentent une forme sensiblement parallélépipédique, et plus particulièrement une forme de losange selon cet exemple de réalisation.According to this second embodiment, the first 5 and second 7 faces of the shutter 1 each have an axial symmetry with respect to the large diameter G1 of the rotation shaft 9 of the shutter 1. Furthermore, the recesses of material 15a, 15b have a substantially parallelepipedal shape, and more particularly a diamond shape according to this exemplary embodiment.

Selon ce deuxième mode de réalisation, la première face 5 présente une première nervure longitudinale 17a et la deuxième face 7 du volet d'obturation 1 présente deux deuxièmes nervures longitudinales 17b disposées de part et d'autre de l'axe de rotation 3 du volet d'obturation 1.According to this second embodiment, the first face 5 has a first longitudinal rib 17a and the second face 7 of the shutter 1 has two second longitudinal ribs 17b arranged on either side of the axis of rotation 3 of the shutter. shutter 1.

En référence aux figures 2C et 2D, il est représenté le volet d'obturation 1 en coupe transversale selon ce deuxième exemple de réalisation. Plus précisément, la figure 2C correspond à la coupe transversale du volet d'obturation selon un premier plan de coupe C1 (visible sur les figures 2A et 2B). Le premier plan de coupe C1 passe au milieu des retraits de matière 15a de la première face 5 du volet d'obturation 1 parallèlement au petit rayon P1 de la forme semi-elliptique 13 de l'arbre de rotation 9. Par ailleurs, la figure 2D correspond à la coupe transversale du volet d'obturation 1 selon un deuxième plan de coupe C2 (visible sur les figures 2A et 2B). Le deuxième plan de coupe C2 passe au milieu des retraits de matière 15b de la deuxième face 7 du volet d'obturation 1 parallèlement au petit rayon P1 de la forme semi-elliptique 13 de l'arbre de rotation 9. Ces figures 2C et 2D permettent de mieux illustrer la disposition en alternance des retraits de matière 15a, 15b sur les première 5 et deuxième 7 faces du volet d'obturation 1 ainsi que leurs dimensions et les dimensions des nervures longitudinales 17 présentes également sur les première 5 et deuxième 7 faces du volet d'obturation 1.With reference to figures 2C and 2D , there is shown the shutter 1 in cross section according to this second embodiment. More precisely, the figure 2C corresponds to the transverse section of the shutter according to a first section plane C1 (visible on the figures 2A and 2B ). The first cutting plane C1 passes through the middle of the material withdrawals 15a of the first face 5 of the shutter 1 parallel to the small radius P1 of the semi-elliptical shape 13 of the rotation shaft 9. Furthermore, the 2D figure corresponds to the cross section of the shutter 1 according to a second section plane C2 (visible on the figures 2A and 2B ). The second cutting plane C2 passes through the middle of the material withdrawals 15b of the second face 7 of the shutter 1 parallel to the small radius P1 of the semi-elliptical shape 13 of the rotation shaft 9. These figures 2C and 2D make it possible to better illustrate the alternating arrangement of the withdrawals of material 15a, 15b on the first 5 and second 7 faces of the shutter 1 as well as their dimensions and the dimensions of the longitudinal ribs 17 also present on the first 5 and second 7 faces of the shutter 1.

En référence aux figures 2C et 2D, les retraits de matière 15a (visibles sur la figure 2D) de la première face 5 sont disposés en alternance par rapport aux retraits de matière 15b (visibles sur la figure 2C). Par alternance, on entend ici que les retraits de matière 15a de la première face 5 ne se chevauchent pas avec les retraits de matière 15b de la deuxième face 7. Plus précisément, les retraits de matière 15a de la première face 5 et les retraits de matière 15b de la deuxième face 7 sont disposés sur l'arbre de rotation 9 de manière décalée les uns par rapport aux autres sur la largeur 1 du volet d'obturation 1.With reference to figures 2C and 2D , the material withdrawals 15a (visible on the 2D figure ) of the first face 5 are arranged alternately with respect to the material withdrawals 15b (visible on the figure 2C ). By alternation is meant here that the withdrawals of material 15a from the first face 5 do not overlap with the withdrawals of material 15b from the second face 7. More precisely, the withdrawals of material 15a from the first face 5 and the withdrawals of material 15b of the second face 7 are arranged on the rotation shaft 9 offset from each other over the width 1 of the shutter 1.

Par ailleurs, selon le mode de réalisation particulier représenté ici, les retraits de matière 15a, 15b présentent une profondeur P comprise entre 75 et 95 % de l'épaisseur E de l'arbre de rotation 9 au niveau de l'axe de rotation 3. Avantageusement, les retraits de matière 15a, 15b permettent de réduire au plus la masse du volet d'obturation 1 sans porter préjudice à la résistance du volet d'obturation 1 aux différentes forces qu'il va subir du fait de son utilisation. Selon l'exemple de réalisation particulier représenté ici, l'arbre de rotation 9 au niveau du fond des retraits de matière 15a, 15b présente une épaisseur sensiblement égale à l'épaisseur de la paroi latérale 11 du volet d'obturation 1.Moreover, according to the particular embodiment shown here, the material withdrawals 15a, 15b have a depth P of between 75 and 95% of the thickness E of the rotation shaft 9 at the level of the axis of rotation 3 Advantageously, the withdrawals of material 15a, 15b make it possible to reduce the mass of the shutter 1 as much as possible without prejudicing the resistance of the shutter 1 to the various forces that it will undergo due to its use. According to the particular embodiment shown here, the rotation shaft 9 at the bottom of the material recesses 15a, 15b has a thickness substantially equal to the thickness of the side wall 11 of the shutter 1.

De plus, les nervures longitudinales 17 présentent de préférence une hauteur H égale à l'épaisseur E de l'arbre de rotation 9 à leur emplacement.In addition, the longitudinal ribs 17 preferably have a height H equal to the thickness E of the rotation shaft 9 at their location.

Troisième exemple de réalisation :Third example of realization:

En référence aux figures 3A à 3C, il est représenté un volet d'obturation 1 de type papillon. Dans ce troisième mode de réalisation, l'ensemble des éléments figurant dans le deuxième mode de réalisation décrit ci-dessus sont présents. Afin de ne pas surcharger la description, seuls les éléments supplémentaires sont décrits ici.With reference to figures 3A to 3C , there is shown a shutter 1 of the butterfly type. In this third embodiment, all of the elements appearing in the second embodiment described above are present. In order not to overload the description, only the additional elements are described here.

Selon cet exemple, chaque paroi latérale 11 comprend de manière optionnelle au moins une nervure radiale 19 s'étendant perpendiculairement à l'axe de rotation 3 dudit volet d'obturation 1. Cette nervure radiale 19 prend naissance au niveau d'une extrémité périphérique de la paroi latérale 11 opposée à l'axe de rotation 3 du volet d'obturation 1, et plus précisément au niveau du cadre périphérique 12 de la paroi latérale 11. La nervure radiale 19 s'étend jusqu'à la périphérie de la forme semi-elliptique 13 de l'arbre de rotation 9. Selon le mode de réalisation particulier décrit ici, chaque paroi latérale 11 présente une pluralité de nervures radiales 19 équidistantes les unes des autres et séparées par une distance D. Selon le mode de réalisation préféré représenté ici, le volet d'obturation 1 présente six nervures radiales 19 équidistantes les unes des autres. Cette répartition des différentes nervures radiales 19 permet une bonne répartition des forces de torsion par exemple sur chaque nervure radiale 19 en complément de la répartition des forces qui s'effectue sur l'arbre de rotation 9, ce qui contribue à la rigidification des parois latérales 11 et donc à la rigidification du volet d'obturation 1. Cette répartition des nervures radiales 19 contribue donc à l'augmentation de la résistance, notamment aux forces de torsion, du volet d'obturation 1.According to this example, each side wall 11 optionally comprises at least one radial rib 19 extending perpendicular to the axis of rotation 3 of said shutter 1. This radial rib 19 originates at a peripheral end of the side wall 11 opposite the axis of rotation 3 of the shutter 1, and more precisely at the level of the peripheral frame 12 of the side wall 11. The radial rib 19 extends to the periphery of the semi-form. -elliptical 13 of the rotation shaft 9. According to the particular embodiment described here, each side wall 11 has a plurality of radial ribs 19 equidistant from each other and separated by a distance D. According to the preferred embodiment shown here, the shutter 1 has six radial ribs 19 equidistant from each other. This distribution of the various radial ribs 19 allows a good distribution of the torsional forces, for example on each radial rib 19 in addition to the distribution of the forces which takes place on the rotation shaft 9, which contributes to the stiffening of the side walls. 11 and therefore to the stiffening of the shutter 1. This distribution radial ribs 19 therefore contribute to increasing the resistance, in particular to torsional forces, of the shutter 1.

En référence à la figure 3C, les nervures radiales 19 présentent une épaisseur variable par rapport au plan défini par la paroi latérale 11. Plus précisément, les nervures radiales 19 présentent une épaisseur sensiblement égale à celle du cadre périphérique 12 au niveau de son extrémité en contact avec le cadre périphérique 12 de la paroi latérale 11 et une épaisseur sensiblement égale à celle de l'arbre de rotation 9, au niveau de la périphérie de la forme semi-elliptique 13, au niveau de son extrémité en contact avec la périphérie de l'arbre de rotation 9. Cette variabilité de l'épaisseur des nervures radiales 19 contribue également à l'augmentation de la rigidité des parois latérales 11 du volet d'obturation 1.With reference to the figure 3C , the radial ribs 19 have a variable thickness with respect to the plane defined by the side wall 11. More precisely, the radial ribs 19 have a thickness substantially equal to that of the peripheral frame 12 at its end in contact with the peripheral frame 12 of the side wall 11 and a thickness substantially equal to that of the rotation shaft 9, at the periphery of the semi-elliptical shape 13, at its end in contact with the periphery of the rotation shaft 9 This variability in the thickness of the radial ribs 19 also contributes to the increase in the rigidity of the side walls 11 of the shutter 1.

Selon un autre mode de réalisation non représenté ici, les nervures radiales 19 sont disposées sur la première 5 et la deuxième 7 faces d'un volet d'obturation 1 de type drapeau, c'est-à-dire ne présentant qu'une seule paroi latérale 11. Selon ce mode de réalisation, le volet d'obturation 1 présente une pluralité de nervures radiales 19 équidistantes les unes des autres.According to another embodiment not shown here, the radial ribs 19 are arranged on the first 5 and the second 7 faces of a shutter 1 of flag type, that is to say having only one side wall 11. According to this embodiment, the shutter 1 has a plurality of radial ribs 19 equidistant from each other.

Selon un autre mode de réalisation non représenté ici, les nervures radiales 19 présentent une épaisseur constante sur l'ensemble de la paroi latérale 11. Cette épaisseur constant peut par exemple correspondre à l'épaisseur du cadre périphérique 12.According to another embodiment not shown here, the radial ribs 19 have a constant thickness over the whole of the side wall 11. This constant thickness may for example correspond to the thickness of the peripheral frame 12.

Quatrième exemple de réalisation :Fourth example of realization:

En référence aux figures 4A à 4C, il est représenté un volet d'obturation 1 de type papillon. Dans ce quatrième mode de réalisation, l'ensemble des éléments du troisième mode de réalisation décrit ci-dessus sont présents. Comme précédemment, de manière à ne pas surcharger la description, seuls les éléments supplémentaires sont décrits ici.With reference to figures 4A to 4C , there is shown a shutter 1 of the butterfly type. In this fourth embodiment, all of the elements of the third embodiment described above are present. As before, so as not to overload the description, only the additional elements are described here.

Selon cet exemple les première 5 et deuxième 7 faces de la paroi latérale 11 présentent de manière optionnelle deux nervures diagonales 21. Chaque nervure diagonale 21 s'étend depuis un angle d'extrémité A de la paroi latérale 11 vers l'axe de rotation 3 du volet d'obturation 1 et forme un angle α compris entre 20° et 60° avec un côté longitudinal D de la paroi latérale 11. Selon le mode de réalisation particulier représenté ici, les nervures diagonales 21 s'étendent jusqu'au croisement de la nervure radiale 19 la plus proche de l'angle d'extrémité A duquel est issue la nervure diagonale 21 et la périphérie de l'arbre de rotation 9.According to this example the first 5 and second 7 faces of the side wall 11 optionally have two diagonal ribs 21. Each diagonal rib 21 extends from an end angle A of the side wall 11 towards the axis of rotation 3. shutter 1 and forms an angle α between 20 ° and 60 ° with a longitudinal side D of the side wall 11. According to the particular embodiment shown here, the diagonal ribs 21 extend to the crossing of the radial rib 19 closest to the end angle A from which the rib originates. diagonal 21 and the periphery of the rotation shaft 9.

Avantageusement, la présence d'une nervure diagonale 21 à chaque angle d'extrémité A de la paroi latérale 11 sur la première face 5 et sur la deuxième face 7 du volet d'obturation 1 permet de rigidifier les angles d'extrémité A de la paroi latérale 11 lorsqu'elle est soumise à de fortes pressions par exemple de manière à ce qu'elle ne soit pas amenée à se tordre ou à se plier. Ainsi, les nervures diagonales 21 contribuent également à l'augmentation de la rigidité du volet d'obturation 1 et donc à sa résistance aux différentes forces qu'il peut subir du fait de son utilisation dans une installation de ventilation, chauffage et/ou climatisation.Advantageously, the presence of a diagonal rib 21 at each end angle A of the side wall 11 on the first face 5 and on the second face 7 of the shutter 1 makes it possible to stiffen the end angles A of the side wall 11 when subjected to high pressures, for example so that it is not caused to twist or bend. Thus, the diagonal ribs 21 also contribute to increasing the rigidity of the shutter 1 and therefore to its resistance to the various forces that it may undergo due to its use in a ventilation, heating and / or air conditioning installation. .

En référence à la figure 4C, les nervures diagonales 21, tout comme les nervures radiales 19, présentent une épaisseur variable par rapport au plan de la paroi latérale 11. Plus précisément, les nervures diagonales 21 présentent une épaisseur sensiblement égale à l'épaisseur du cadre périphérique 12 au niveau de l'angle d'extrémité A de la paroi latérale 11 et une épaisseur sensiblement égale à celle de l'arbre de rotation 9 au niveau de son croisement avec la nervure radiale 19. Cette variabilité de l'épaisseur des nervures diagonales 21 contribue également à l'augmentation de la résistance, notamment aux efforts de torsion, des parois latérales 11 et donc à l'augmentation de la rigidité du volet d'obturation 1.With reference to the figure 4C , the diagonal ribs 21, like the radial ribs 19, have a variable thickness with respect to the plane of the side wall 11. More precisely, the diagonal ribs 21 have a thickness substantially equal to the thickness of the peripheral frame 12 at the level of the end angle A of the side wall 11 and a thickness substantially equal to that of the rotation shaft 9 at its intersection with the radial rib 19. This variability in the thickness of the diagonal ribs 21 also contributes to the increase in the resistance, in particular to torsional forces, of the side walls 11 and therefore to the increase in the rigidity of the shutter 1.

Selon un autre mode de réalisation non représenté ici, le volet d'obturation 1 présente deux parois latérales 11 sur lesquelles seules les nervures diagonales 21 sont présentes.According to another embodiment not shown here, the shutter 1 has two side walls 11 on which only the diagonal ribs 21 are present.

Selon encore un autre mode de réalisation non représenté ici, les nervures diagonales 21 présentent une épaisseur constante. Cette épaisseur constant peut par exemple être égale à l'épaisseur du cadre périphérique 12 de la paroi latérale 11.According to yet another embodiment not shown here, the diagonal ribs 21 have a constant thickness. This constant thickness can for example be equal to the thickness of the peripheral frame 12 of the side wall 11.

Selon une variante non représentée ici, le volet d'obturation 1 correspond à un volet de type drapeau. Selon cette variante, le volet d'obturation 1 présente sur ses première 5 et deuxième face 7 une nervure diagonale 21 disposée au niveau des angles d'extrémité A de la paroi latérale 11. Selon cette variante, les nervures radiales 19 peuvent être présentes ou absentes.According to a variant not shown here, the shutter 1 corresponds to a flag type shutter. According to this variant, the shutter 1 has on its first 5 and second face 7 a diagonal rib 21 disposed at the level of the end angles A of the side wall 11. According to this variant, the radial ribs 19 may be present or absent.

Ces exemples de réalisation sont fournis à titre d'exemples illustratifs et non limitatifs. En effet, il est tout à fait possible pour l'homme de l'art sans sortir du cadre de la présente invention de modifier la forme géométrique des retraits de matière, pour leur faire adopter toute autre forme qu'une forme sensiblement parallélépipédique, comme par exemple des formes circulaires. De même l'homme de l'art pourra utiliser un volet d'obturation ne présentant des nervures radiales ou diagonales que sur une seule face du volet d'obturation afin d'obtenir un volet d'obturation présentant des propriétés de résistance aux différentes contraintes améliorées, ou même concevoir un volet d'obturation présentant une symétrie par rapport à l'axe de rotation pour les retraits de matière mais pas pour les nervures diagonales ou radiales.These exemplary embodiments are provided by way of illustrative and non-limiting examples. Indeed, it is quite possible for those skilled in the art without departing from the scope of the present invention to modify the geometric shape of the material withdrawals, to make them adopt any shape other than a substantially parallelepiped shape, such as for example circular shapes. Likewise, a person skilled in the art may use a shutter having radial or diagonal ribs on only one face of the shutter in order to obtain a shutter having properties of resistance to various stresses. improved, or even design a shutter having a symmetry with respect to the axis of rotation for the material withdrawals but not for the diagonal or radial ribs.

Ainsi, la diminution de la masse d'un volet d'obturation 1 tout en lui permettant de conserver une bonne résistance aux forces qu'il subit lors de son utilisation, comme des forces de pression ou encore de torsion par exemple, est possible grâce au volet d'obturation 1 tel que décrit ci-dessus.Thus, the reduction in the mass of a shutter 1 while allowing it to maintain good resistance to the forces that it undergoes during its use, such as pressure or even torsion forces for example, is possible thanks to to the shutter 1 as described above.

Claims (11)

  1. Airflow shut-off flap (1) having a rotation axle (3), a first face (5) and a second face (7) opposite to the first face (5), said first (5) and second (7) faces of the shut-off flap (1) defining a plane, said shut-off flap (1) comprising:
    • a rotation shaft (9) projecting on each face of the plane defined by the first (5) and second (7) faces of the shut-off flap (1), and
    • at least one lateral wall (11) having a planar surface of substantially parallelepipedal shape arranged radially with respect to the rotation shaft (9),
    the rotation shaft (9) having, in the plane of the at least one lateral wall (11), a half-ellipse shape (13) extending along said at least one lateral wall (11), said half-ellipse shape (13) comprising a major diameter (G1) that coincides with the rotation axle (3) of the shut-off flap (1) and a minor radius (P1) parallel to the plane of the at least one lateral wall (11),
    the first face (5) having at least one first row of removals of material (15a) and the second face (7) of the shut-off flap (1) has at least one second row of removals of material (15b), said rows of removals of material (15a, 15b) being positioned at the level of the rotation shaft (9) parallel to the rotation axle (3) of the shut-off flap (1), said removals of material (15a, 15b) corresponding to blind orifices,
    characterized in that the rotation shaft (9) also has at least one longitudinal rib (17) positioned substantially at the centre of the removals of material (15a, 15b) and parallel to the major diameter (G1) of the rotation shaft (9), the rotation shaft (9) having a first row of removals of material (15a) comprising a first longitudinal rib (17a) positioned at the level of the rotation axle (3) of the shut-off flap (1) on the first face (5) of the shut-off flap (1) and a second row of removals of material (15b) comprising a second longitudinal rib (17b) on the second face (7) of the shut-off flap (1) in a manner offset from the rotation axle (3) of the shut-off flap (1) .
  2. Shut-off flap (1) according to the preceding claim, characterized in that
    • the major diameter (G1) of the rotation shaft (9) is comprised between 65% and 100% of the total length (L) of the shut-off flap (1), preferably comprised between 80% and 100% of the total length (L) of the shut-off flap (1), and
    • the minor radius (P1) of the rotation shaft (9) is comprised between 50% and 100% of the total width (1) of the shut-off flap (1).
  3. Shut-off flap (1) according to either of the preceding claims, characterized in that the first row of removals of material (15a) and the second row of removals of material (15b) are arranged in alternation on the first face (5) and on the second face (7) of the shut-off flap (1).
  4. Shut-off flap (1) according to Claim 3, characterized in that the removals of material (15a, 15b) have a depth (P) greater than or equal to 50% of the thickness (E) of the rotation shaft (9), and preferably comprised between 75 and 95% of the thickness (E) of the rotation shaft (9) .
  5. Shut-off flap (1) according to one of Claims 1 to 4, characterized in that the longitudinal rib (17) has a height (H) equal to the thickness (E) of the rotation shaft (9) at that point.
  6. Shut-off flap (1) according to any one of the preceding claims, characterized in that the at least one lateral wall (11) comprises at least one radial rib (19) extending perpendicular to the rotation axle (3) of said shut-off flap (1), said radial rib (19) starting at the level of a peripheral end of the lateral wall (11) opposite to the rotation axle (3) of the shut-off flap (1) and extending as far as the periphery of the rotation shaft (9).
  7. Shut-off flap (1) according to Claim 6, characterized in that the at least one lateral wall (11) has at least three radial ribs (19) equidistant from one another.
  8. Shut-off flap (1) according to any one of the preceding claims, characterized in that the shut-off flap (1) comprises two lateral walls (11) and the rotation shaft (9) of half-ellipse shape (13) extending on each of the lateral walls (11) on either side of the rotation axle (3) of the shut-off flap (1).
  9. Shut-off flap (1) according to Claim 8, characterized in that the first (5) and second (7) faces of the shut-off flap (1) each exhibit axial symmetry with respect to the major diameter (G1) of the rotation shaft (9) .
  10. Shut-off flap (1) according to any one of Claims 1 to 9, characterized in that the removals of material (15a, 15b) have a substantially parallelepipedal shape, and preferably a diamond shape.
  11. Heating, ventilation and/or air conditioning installation, characterized in that it comprises at least one shut-off flap (1) according to any one of the preceding claims.
EP18710509.3A 2017-02-08 2018-02-08 Damper door, and corresponding heating, ventilation and/or air conditioning installation Active EP3580500B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1751042A FR3062603B1 (en) 2017-02-08 2017-02-08 SHUTTER SHUTTER AND CORRESPONDING HEATING, VENTILATION AND / OR AIR CONDITIONING INSTALLATION
PCT/FR2018/050310 WO2018146425A1 (en) 2017-02-08 2018-02-08 Damper door, and corresponding heating, ventilation and/or air conditioning installation

Publications (2)

Publication Number Publication Date
EP3580500A1 EP3580500A1 (en) 2019-12-18
EP3580500B1 true EP3580500B1 (en) 2021-08-11

Family

ID=58669971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18710509.3A Active EP3580500B1 (en) 2017-02-08 2018-02-08 Damper door, and corresponding heating, ventilation and/or air conditioning installation

Country Status (6)

Country Link
US (2) US11268736B2 (en)
EP (1) EP3580500B1 (en)
JP (2) JP2020506361A (en)
CN (1) CN110291342A (en)
FR (1) FR3062603B1 (en)
WO (1) WO2018146425A1 (en)

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DE102019217319A1 (en) * 2019-11-08 2021-05-12 Mahle International Gmbh flap
DE102022004043A1 (en) * 2022-10-31 2024-05-02 Mercedes-Benz Group AG Air distribution device
USD991137S1 (en) * 2023-03-22 2023-07-04 Guangzhou Songxianjun Trading Co., Ltd. Ventilation deflectors for car seats

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JP3711960B2 (en) * 2002-06-12 2005-11-02 株式会社デンソー Air conditioner for vehicles
JP2004026069A (en) * 2002-06-27 2004-01-29 Japan Climate Systems Corp Air conditioning unit for vehicle
ES2322628T3 (en) 2006-02-22 2009-06-23 Dr. Schneider Kunststoffwerke Gmbh AIR NOZZLE
JP4859621B2 (en) * 2006-10-19 2012-01-25 三菱重工業株式会社 Air conditioner for vehicles
JP4457115B2 (en) * 2007-01-16 2010-04-28 日立オートモティブシステムズ株式会社 Butterfly type valve device
JP2008273234A (en) * 2007-04-25 2008-11-13 Denso Corp Air passage opening/closing door
JP2009012715A (en) * 2007-07-09 2009-01-22 Denso Corp Plate door for air-conditioner
FR2959167B1 (en) * 2010-04-23 2013-04-26 Valeo Systemes Thermiques INSTALLATION FOR HEAT TREATMENT OF AN AIR FLOW
EP2631098B1 (en) * 2012-02-24 2015-04-29 Valeo Autoklimatizace k.s. Air flap assembly and vehicle Heating, Ventilating and/or Air Conditioning system
US9476520B2 (en) 2013-03-14 2016-10-25 Hanon Systems HVAC door with intersecting surface configurations
DE102013112631A1 (en) * 2013-11-15 2015-05-21 Valeo Klimasysteme Gmbh Control device for controlling at least two air distribution flaps a heating and / or air conditioning of a motor vehicle
DE102014211704A1 (en) * 2014-06-18 2015-12-24 Mahle International Gmbh ventilation flap
CN205022328U (en) * 2015-10-16 2016-02-10 重庆松芝汽车空调有限公司 Vehicle air conditioner leak protection wind air door
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Also Published As

Publication number Publication date
FR3062603B1 (en) 2020-06-19
JP2020506361A (en) 2020-02-27
CN110291342A (en) 2019-09-27
EP3580500A1 (en) 2019-12-18
WO2018146425A1 (en) 2018-08-16
US20220235966A1 (en) 2022-07-28
JP7238012B2 (en) 2023-03-13
JP2021121780A (en) 2021-08-26
FR3062603A1 (en) 2018-08-10
US20200018516A1 (en) 2020-01-16
US11268736B2 (en) 2022-03-08
US11629880B2 (en) 2023-04-18

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